You have been analyzing discharges by sex from DRG 462, Rehabilitation, for Critical Care Hospital. Specifically, you are interested in determining if there is a difference in average age by sex....

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You have been analyzing discharges by sex from DRG 462, Rehabilitation, for Critical Care Hospital. Specifically, you are interested in determining if there is a difference in average age by sex. Review the data in Table 5–A–1, and answer the questions that follow

a. State the null and alternative hypotheses; state the a priori alpha level.

b. What is the average age for the entire group? For men? For women?

c. Why is the standard error larger for the male group than for the female group?

d. Why is the standard error for the total group smaller than either of the standard errors for the male or female groups?

e. What is the 95% confidence interval for men? For women? For the entire group?

f. What is your interpretation of the 95% confidence interval?

Answered Same DayDec 25, 2021

Answer To: You have been analyzing discharges by sex from DRG 462, Rehabilitation, for Critical Care Hospital....

David answered on Dec 25 2021

133 Votes

a) Null Hypothesis: µM = µF i.e. there is no significant difference between the mean ages of
male and female
Alternative hypothesis: µM ≠ µF i.e. there is significant difference between the mean ages of
male and female
The level of significance is assumed to be 5%.
b) The average age for the entire group is 54.671 years. The average age for males is 53.947
years while that...

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You have been analyzing discharges by sex from DRG 462, Rehabilitation, for Critical Care Hospital. Specifically, you are interested in determining if there is a difference in average age by sex....

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